Crank-case ventilator



Dec. 24, 1929. J. E. HINES 1,741,111

, 01mm CASE VENTILATOR Filed June 1928 Patented Dec. 24, 1929 arren'TATES PATENT OFFICE JOSEPH E. HINES, OF LATROBE, PENNSYLVANIACRANK-CASE VENTILATOR Application filed June 4,

My present invention has reference to an attachment for motor vehicles,and has for its primary object the provision of an extremely simple,easily attached means for ridding crank cases of burnt gases and todirect the same into the carbureter and to likewise prevent dilution andremoves all acid forming gases from the crank case.

To the attainment of the foregoing the invention consists in theimprovement as hereinafter described and definitely claimed.

In the drawings:

Figure 1 is a side elevation of an internal combustion engine providedwith the improvement.

Figure 2 is a side elevation of the improvement with parts in section.

Referring to the drawings in detail, the numeral 1 designates aninternal combustion engine or engine of the type usually employed inconnection with automobiles, 2 the carbureter, 3 the air intake pipeleading to the carbureter and i the breather pipe.

In carrying out my invention I remove the usual cap or cover from thebreather pipe and in lieu thereof arrange on said breather pipe flangedor tubular member 5 through which is threaded a bolt 6 that contactswith the breather pipe and sustains the tubular or cap member 5 thereon.The tubular or cap member 5 has its outer end formed with an inwardlydirected flange 6 and the said tube or cap has pivoted to one sideadjacent to the top thereof a cover 7. This cover is provide-d with aninwardly extending spring catch 8 that is oifset or rather has asubstantially V-shaped bend adjacent to the end thereof, the innerportion of which is designed to frictionally engage with a substantiallyV-shaped lug 9 integrally formed in the bore of the cap 5. The cap 5 isformed 7 with an opening that is surrounded by a tubular extension orsleeve 10, in which is received one end of a flexible pipe 11.

The pipe 11 has its outer end recelved 1n 1328. Serial No. 282,769.

the lateral branch of a T-coupling 12, one end of the T-coupling beingconnected to a pipe 18 that leads to the carbureter 2 and the second andouter end of the T-coupling having received therein the end of the airintake 3.

To those acquainted with internal combustion engines, it is well knownthat when the said engine is run at low temperatures, moisture willcollect and unite with the gases formed by combustion, so that acid willbe formed and is likely to cause serious etching and pitting. Thisetching, pitting or corrosion, is occasioned by fuel which containsconsiderable sulphur and manifests itself in excessively rapid wear onthe piston pins, cam shaft bearings, and other moving parts ofthe motor.In addition to this water accumulates in the oil reservoir. The gasespassing the pistons and rings, even under the most favorable conditions,will have the formation of water in the oil reservoir in a greater orless degree until the motor becomes warm. hen the motor becomesthoroughly warm, the crank case will no longer act as a condenser andnearly all of these gases will pass out through the breather pipe. hlyimprovement is designed to overcome the pitting of the engine parts, andto prevent dilution of the crank case, as the vapors rising in thebreather pipe will be conducted through the pipe 11 into the T-coupling12 and from thence directed into the carbureter.

lVhile I have illustrated a satisfactory embodiment of the improvementmy features of construction are capable of extended application and I donot wish to be limited to the specific structure shown and described.

Having described the invention, I claim: A cap designed to be arrangedover the mouth of the breather tube of an internal combustion engine,comprising a tubular member, a binding element for holding the member ona breather pipe. said member having at its top an inwardly directedflange,

said member having the Wall of its bore, 0pposite the last mentionedflange integrally formed with a substantially V-shaped enlargement, acover member hingedly secured tothe cap at the flanged portion of themouth thereof, a spring catch fixed on the inner face of the covermember having an angle portion to engage with the V-shaped lug in thecap, said cap having a side opening for the reception of a pipe member,and a flange surrounding this opening.

In testimony whereof I aflix my signature.

JOSEPH E. HINES.

